Mozilla Thunderbird up to 68.8.x STARTTLS missing encryption

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Thunderbird up to 68.8.x and classified as critical. Affected by this vulnerability is an unknown functionality of the component STARTTLS Handler. Such manipulation leads to missing encryption. This vulnerability is traded as CVE-2020-12398. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Thunderbird up to 68.8.x (Mail Client Software) and classified as problematic. Affected by this issue is an unknown code of the component STARTTLS Handler. The manipulation with an unknown input leads to a missing encryption vulnerability. Using CWE to declare the problem leads to CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. Impacted is confidentiality. CVE summarizes:

If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.

The weakness was shared 07/09/2020 as Bug 1613623 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.mozilla.org. This vulnerability is handled as CVE-2020-12398 since 04/28/2020. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.

Upgrading to version 68.9.0 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Missing encryption
CWE: CWE-311 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 68.9.0

Timelineinfo

04/28/2020 🔍
07/09/2020 +72 days 🔍
07/10/2020 +1 days 🔍
07/10/2020 +0 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: Bug 1613623
Status: Not defined

CVE: CVE-2020-12398 (🔍)
GCVE (CVE): GCVE-0-2020-12398
GCVE (VulDB): GCVE-100-157784

Entryinfo

Created: 07/10/2020 08:11
Updated: 07/10/2020 08:16
Changes: 07/10/2020 08:11 (42), 07/10/2020 08:16 (18)
Complete: 🔍
Cache ID: 216::103

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